Fix race condition in FPM tests

The newly de-XFAILed tests have a race condition. Make sure we
terminate only after expecting all the log lines.

Author: nikic

sapi/fpm/tests/log-bwd-multiple-msgs-stdout-stderr.phpt

@@ -34,9 +34,9 @@ $tester->start();
 $tester->expectLogStartNotices();
 $tester->request()->expectEmptyBody();
 $tester->request()->expectEmptyBody();
-$tester->terminate();
 $tester->expectLogLine('msg 1 - ', false);
 $tester->expectLogLine('msg 2 - msg 3', true);
+$tester->terminate();
 $tester->close();
 
 ?>

sapi/fpm/tests/log-bwd-multiple-msgs.phpt

@@ -34,9 +34,9 @@ $tester->start();
 $tester->expectLogStartNotices();
 $tester->request()->expectEmptyBody();
 $tester->request()->expectEmptyBody();
-$tester->terminate();
 $tester->expectLogLine('msg 1 - msg 2 - msg 3');
 $tester->expectLogLine('msg 1 - msg 2 - msg 3');
+$tester->terminate();
 $tester->close();
 ?>
 Done